Well-balanced cooling performance: Computer aided heatsink design provides fin optimization with perfect balance between high and low speed operation 4x Direct Contact heat-pipes for seamless contact between CPU surface and cooler Wide-range PWM fan with unique blade design for excellent airflow Upgradable to dual fans and swapping of fans with extra fan-clips included Fan mounting using clips for easy installation and swapping Versatile all-in-one mounting solution for Intel Socket LGA775/1156/1366 and AMD Socket 939/AM2/AM3 Silent operation with minimal noise level at 13dBA Socket Type: Intel LGA1366/1156/775; AMD AM3/AM2/AM2+ Applications: Intel: Core i7 Extreme/Core i7/Core 2 Extreme/Core 2 Quad/Core 2 Duo/Pentium/Celeron AMD: Phenom II X4/Phenom II X3/Phenom X4/Phenom X3/Athlon X2/Athlon/Sempron Fan: Speed: 600 - 2000 R.P.M.(PWM) Noise Level: 13 to 32dBA Air flow: 21.2 to 76.8cfm Bearing Type: Long life sleeve bearing Life Expectancy: 40,000 hours Dimension: 120 x 120 x 25 mm Heatsink: Material: Aluminum Fin, w/ 4 heat pipes Dimension(W x L x H): 79.7 x 120 x 158.5 mm